/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.shardingsphere.proxy.frontend.exception;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.apache.shardingsphere.infra.config.exception.ShardingSphereConfigurationException;
import org.apache.shardingsphere.infra.exception.ShardingSphereException;
import org.apache.shardingsphere.proxy.backend.exception.BackendException;
import org.apache.shardingsphere.proxy.backend.text.sctl.exception.ShardingCTLException;
import org.apache.shardingsphere.sql.parser.exception.SQLParsingException;

import java.util.Collection;
import java.util.HashSet;

/**
 * Expected exceptions.
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class ExpectedExceptions {
    
    private static final Collection<Class<? extends Exception>> EXCEPTIONS = new HashSet<>();
    
    static {
        EXCEPTIONS.add(ShardingSphereException.class);
        EXCEPTIONS.add(ShardingSphereConfigurationException.class);
        EXCEPTIONS.add(SQLParsingException.class);
        EXCEPTIONS.add(ShardingCTLException.class);
        EXCEPTIONS.add(BackendException.class);
    }
    
    /**
     * Judge whether expected exception.
     * @param exceptionClass exception class
     * @return is expected exception or not
     */
    public static boolean isExpected(final Class<?> exceptionClass) {
        return EXCEPTIONS.stream().anyMatch(each -> each.isAssignableFrom(exceptionClass));
    }
}
